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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
15/10/1993 |
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Data da última atualização: |
15/10/1993 |
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Autoria: |
OLDIFIELD, G. N.; YOKOMI, R. K. Y.; GOLINO, D. A.; GUMPF, D. J. |
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Afiliação: |
University of California, Department of Plant Pathology, Riverside, CA 92521, USA. |
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Título: |
Flight phenology of circulifer tenellus and other leafoppers in San Joaquin Valley citrus groves. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Riverside, California: International Organization of Citrus Virologists, 1991. |
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Páginas: |
p.441-447 |
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Idioma: |
Inglês |
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Notas: |
Conference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings... |
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Conteúdo: |
Flight activity of Circulifer tenellus (Baker) and several other leafhoppers was monitored along the southeastern and southern edges of the San Joaquin Valley of California with yellow sticky cards placed in young and mature citrus groves, and in a sunny rangeland habitat of C. tenellus in 1982 and 1983. The number of C. tenellus trapped in young citrus groves was approximately 35-fold greater than that in mature groves over the 2-yr survey period. Numbers of trapped C. tenellus were at least 10-fold higher in the fall than in the spring, especifically in yuong groves, and remained high for approximatelly 2 months. Although most C. tenellus trapped on stick traps were males, nearly equal numbers of each sex were collected by suction directly from citrus in a young grove. Eight percent of the C. tenellus collected from citrus in the fall were naturally inoculative for Spiroplasma citri, the citrus stubborn disease agent. The high catches of male C. tenellus indicated that males responded differently to stick traps than did females. Many more C. tenellus indicated trapped in the middle of a rangeland breeding site than at the edge of the rangeland next to a mature citrus groves or within the grove. These data indicated that young citrus trees probably receive many more inoculations of S. citri than do trees in mature groves, and that the closed canopy of mature trees may act as an entry barrier to C. tenellus. Overall, Empoasca spp. was the most frequently caught group of leafhoppers. MenosFlight activity of Circulifer tenellus (Baker) and several other leafhoppers was monitored along the southeastern and southern edges of the San Joaquin Valley of California with yellow sticky cards placed in young and mature citrus groves, and in a sunny rangeland habitat of C. tenellus in 1982 and 1983. The number of C. tenellus trapped in young citrus groves was approximately 35-fold greater than that in mature groves over the 2-yr survey period. Numbers of trapped C. tenellus were at least 10-fold higher in the fall than in the spring, especifically in yuong groves, and remained high for approximatelly 2 months. Although most C. tenellus trapped on stick traps were males, nearly equal numbers of each sex were collected by suction directly from citrus in a young grove. Eight percent of the C. tenellus collected from citrus in the fall were naturally inoculative for Spiroplasma citri, the citrus stubborn disease agent. The high catches of male C. tenellus indicated that males responded differently to stick traps than did females. Many more C. tenellus indicated trapped in the middle of a rangeland breeding site than at the edge of the rangeland next to a mature citrus groves or within the grove. These data indicated that young citrus trees probably receive many more inoculations of S. citri than do trees in mature groves, and that the closed canopy of mature trees may act as an entry barrier to C. tenellus. Overall, Empoasca spp. was the most frequently caught group of leaf... Mostrar Tudo |
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Palavras-Chave: |
Beet leafhopper; Flight phenology; Spiroplasm citri; Stubborn disease. |
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Thesaurus Nal: |
sticky traps. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02320naa a2200241 a 4500
001 1644287
005 1993-10-15
008 1991 bl uuuu u00u1 u #d
100 1 $aOLDIFIELD, G. N.
245 $aFlight phenology of circulifer tenellus and other leafoppers in San Joaquin Valley citrus groves.
260 $c1991
300 $ap.441-447
500 $aConference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings...
520 $aFlight activity of Circulifer tenellus (Baker) and several other leafhoppers was monitored along the southeastern and southern edges of the San Joaquin Valley of California with yellow sticky cards placed in young and mature citrus groves, and in a sunny rangeland habitat of C. tenellus in 1982 and 1983. The number of C. tenellus trapped in young citrus groves was approximately 35-fold greater than that in mature groves over the 2-yr survey period. Numbers of trapped C. tenellus were at least 10-fold higher in the fall than in the spring, especifically in yuong groves, and remained high for approximatelly 2 months. Although most C. tenellus trapped on stick traps were males, nearly equal numbers of each sex were collected by suction directly from citrus in a young grove. Eight percent of the C. tenellus collected from citrus in the fall were naturally inoculative for Spiroplasma citri, the citrus stubborn disease agent. The high catches of male C. tenellus indicated that males responded differently to stick traps than did females. Many more C. tenellus indicated trapped in the middle of a rangeland breeding site than at the edge of the rangeland next to a mature citrus groves or within the grove. These data indicated that young citrus trees probably receive many more inoculations of S. citri than do trees in mature groves, and that the closed canopy of mature trees may act as an entry barrier to C. tenellus. Overall, Empoasca spp. was the most frequently caught group of leafhoppers.
650 $asticky traps
653 $aBeet leafhopper
653 $aFlight phenology
653 $aSpiroplasm citri
653 $aStubborn disease
700 1 $aYOKOMI, R. K. Y.
700 1 $aGOLINO, D. A.
700 1 $aGUMPF, D. J.
773 $tRiverside, California: International Organization of Citrus Virologists, 1991.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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